Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cows
Dystocia (DYS) is an important problem in Holstein cattle and imposes important economic losses on cattle producers. The etiologies and types of DYS are various and different factors can influence its incidence. In the present study, incidence of different types of dystocia was investigated in diffe...
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Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria
2018-09-01
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Online Access: | http://tru.uni-sz.bg/bjvm/BJVM%20September%202018%20p.336-346.pdf |
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doaj-53a7eb1070854ad8b4becbbb14f4d8c62020-11-24T23:53:24ZengFaculty of Veterinary Medicine, Trakia University, Stara Zagora, BulgariaBulgarian Journal of Veterinary Medicine1311-14771313-35432018-09-0121333634610.15547/bjvm.1097Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cowsM. Goli0Department of Clinical Science, Faculty of Veterinary Medicine, Razi University, Kermanshah, IranDystocia (DYS) is an important problem in Holstein cattle and imposes important economic losses on cattle producers. The etiologies and types of DYS are various and different factors can influence its incidence. In the present study, incidence of different types of dystocia was investigated in different seasons and parities in Holstein cows. One hundred and eighty two primi- and multiparous cows with DYS were included in the study. The results showed significantly more calf births in anterior presen-tation to first-calf heifers compared to those born to cows in parities 2–3 or ≥ 4 (P≤0.05). There was no significant difference in the number of calves born in anterior presentation between cows in pari-ties 2–3 and those in parities ≥4 (P>0.05). Also, significantly more dystocia cases were encountered in first-calf heifers compared with those in cows in parities 2–3 or ≥4 (P≤0.05) but there was no sig-nificant difference in this regard between the cows in parities 2–3 and those in parities ≥4 (P>0.05). In addition, the results revealed that DYS due to foetopelvic disproportion (FPD) mostly affected the primiparous cows and that the multiparous cows were mostly affected by dystocia due to twin birth (TB), uterine inertia (UI) and uterine torsion (UT). Moreover, the results showed that significantly most DYS cases occurred during winter compared with spring, summer or autumn (P≤0.05), of which the majority was due to FPD. On the other hand, the least DYS cases were observed in summer months, of which the majority was again due to FPD. Finally, there was no significant difference in the overall incidence of dystocia between spring, summer and autumn (P>0.05). http://tru.uni-sz.bg/bjvm/BJVM%20September%202018%20p.336-346.pdfdystociaHolstein cowsparityseason |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. Goli |
spellingShingle |
M. Goli Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cows Bulgarian Journal of Veterinary Medicine dystocia Holstein cows parity season |
author_facet |
M. Goli |
author_sort |
M. Goli |
title |
Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cows |
title_short |
Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cows |
title_full |
Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cows |
title_fullStr |
Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cows |
title_full_unstemmed |
Incidence of different types of dystocia in different seasons of the year and parities in Iranian Holstein dairy cows |
title_sort |
incidence of different types of dystocia in different seasons of the year and parities in iranian holstein dairy cows |
publisher |
Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria |
series |
Bulgarian Journal of Veterinary Medicine |
issn |
1311-1477 1313-3543 |
publishDate |
2018-09-01 |
description |
Dystocia (DYS) is an important problem in Holstein cattle and imposes important economic losses on cattle producers. The etiologies and types of DYS are various and different factors can influence its incidence. In the present study, incidence of different types of dystocia was investigated in different seasons and parities in Holstein cows. One hundred and eighty two primi- and multiparous cows with DYS were included in the study. The results showed significantly more calf births in anterior presen-tation to first-calf heifers compared to those born to cows in parities 2–3 or ≥ 4 (P≤0.05). There was no significant difference in the number of calves born in anterior presentation between cows in pari-ties 2–3 and those in parities ≥4 (P>0.05). Also, significantly more dystocia cases were encountered in first-calf heifers compared with those in cows in parities 2–3 or ≥4 (P≤0.05) but there was no sig-nificant difference in this regard between the cows in parities 2–3 and those in parities ≥4 (P>0.05). In addition, the results revealed that DYS due to foetopelvic disproportion (FPD) mostly affected the primiparous cows and that the multiparous cows were mostly affected by dystocia due to twin birth (TB), uterine inertia (UI) and uterine torsion (UT). Moreover, the results showed that significantly most DYS cases occurred during winter compared with spring, summer or autumn (P≤0.05), of which the majority was due to FPD. On the other hand, the least DYS cases were observed in summer months, of which the majority was again due to FPD. Finally, there was no significant difference in the overall incidence of dystocia between spring, summer and autumn (P>0.05). |
topic |
dystocia Holstein cows parity season |
url |
http://tru.uni-sz.bg/bjvm/BJVM%20September%202018%20p.336-346.pdf |
work_keys_str_mv |
AT mgoli incidenceofdifferenttypesofdystociaindifferentseasonsoftheyearandparitiesiniranianholsteindairycows |
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